TY - BOOK AU - Sattelmacher,B. AU - Marschner,H. TI - Nitrogen nutrition and cytokinin activity in Solanum tuberosum KW - CYTOKININ N2 - In water culture experiments with potato plants (Solanum tuberosum L. cv. Ostara), the influence of continuous nitrogen nutrition (constant supply of NO3-)and discontinuous nitrogen nutrition (interruption of NO3- supply, i. e., nitrogen withdrawal for 6 days)on the endogeneous cytokinin level in the roots, shoots and exudate of decapitated plants was studied. Harvests took place at intervals of 3 days. The chlorophyll formation test (cucumber cotyledons)and soya callus test were used to determine the cytokinin activity UR - https://drive.google.com/file/d/17VjcVXrg_5SVOeI_DVmJw9H_Ce1bJ4MK/view?usp=drivesdk ER -